Chiller unit



FIG. 1 is a perspective view of a chiller unit showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view of the chiller unit of FIG. 1 shown in an open position.

The broken lines of FIG. 8 are for the purpose of illustration and form no part of the claimed design. 

The ornamental design for a chiller unit, as shown and described. 